计算输入时间如“ 2018-12-12” 的 00：00：00距离现在的时间间隔 

<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<input id='date' type="text" value="2018-12-12">
<input id="btn" type="button" value="时间差">
<script>
var oDate = document.querySelector('#date');
var oBtn = document.querySelector('#btn');
var nowtimestamp =new Date().getTime();
oBtn.onclick=function(){
    var regex = /^\d{4}-\d{2}-\d{2}$/;
    var sDate = oDate.value;
    //正确的时间格式
    if(regex.test(sDate) &&Date.parse(sDate)!='NaN' ){
        var d =new Date();
        //输入年份时间定为00:00:00，默认8点
        var target =new Date(sDate.split('-').join('/'));
        var inputDate =Date.parse(sDate); //输入时间戳
        var now =new Date();
        var ms =now-target;     //时间日期相减得-毫秒
        var d = parseInt(ms/1000/60/60/24), //天
            h=parseInt(ms/1000/60/60-d*24), //小时
            m = parseInt(ms/1000/60-d*24*60-h*60),  //分钟
            s = parseInt(ms/1000-d*24*60*60-h*60*60-m*60)   //秒
        console.log(d+"天"+h+'小时'+m+"分"+s+'秒')
    }
}
</script>
</body>
</html>

posted @ 2018-12-27 14:33  YJUI  阅读(253)  评论(0)    收藏  举报